Abstract: Through a mass survey of cervixes of 2547 adult married women in NorthHenan, it has been found out that the incidence of cervical erosion is 53. 71 %; theyoung and middle-aged group has an obviously higher incidence of cervical erosionthan the aged group. However, in regard to cervical cell atypical hyperplasia, theformer has a much lower incidence than the latter. The above metioned two diseases both have a much higher incidence in the urban group than in the rural group.It is concluded by analysis that cervical erosion among urban women is possibly related with some public men bathroom in cities. Cervical erosion is not definitely inproportion to cervical cell atypical hyperplasia, whereas cervix precancerous lesionis closely related to cervical cancer. Therefore, in mass surveies, more attentionshould be paid to cytological examination, especially to those smooth cervixes withcell atypical hyperplasia in order to avoid missed diagnosis. regular mass surveiesand follow-up surveies are of great importance in the early diagnosis and treatmentof cervical procancerous lesion.